Open Question
Niobium reacts with fluorine at room temperature to give a solid binary compound that is 49.44% Nb by mass. (a) What is the empirical formula of the compound? (b) Write a balanced equation for the reaction.
Ch.22 - The Main Group Elements
Chapter 22, Problem 152
Write an electron-dot structure for each of the following molecules or ions and predict the geometrical structure: (a) HIO3 (b) ClO2- (c) HOCl (d) IO6^5-
Verified step by step guidance1
Step 1: Determine the total number of valence electrons for each molecule or ion. For example, for HIO3, sum the valence electrons of H, I, and O atoms.
Step 2: Draw the skeletal structure of the molecule or ion, connecting atoms with single bonds. Typically, the least electronegative atom is the central atom, except for hydrogen.
Step 3: Distribute the remaining valence electrons as lone pairs to satisfy the octet rule for each atom, starting with the outer atoms. Adjust for any charges in ions.
Step 4: If any atoms lack an octet, consider forming double or triple bonds by converting lone pairs from adjacent atoms into bonding pairs.
Step 5: Use VSEPR theory to predict the molecular geometry based on the electron-pair arrangement around the central atom, considering both bonding and lone pairs.
Related Practice
Textbook Question
Niobium reacts with fluorine at room temperature to give a solid binary compound that is 49.44% Nb by mass.
(c) The compound reacts with hydrogen to regenerate niobium. Write a balanced equation for the reaction.
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Open Question
Write the formula for chlorous acid and indicate the oxidation state of the halogen.
Open Question
Write an electron-dot structure for each of the following molecules or ions, and predict the geometrical structure: (a) BrO4- (b) ClO3- (c) HIO4 (d) HOBr.
Open Question
Explain why acid strength increases in the order HClO 6 HClO2 6 HClO3 6 HClO4.
Open Question
Explain why acid strength increases in the order HIO < HBrO < HClO.